Characteristics of magnetic fabrics of Jiangshan-Shaoxing collision belt and its tectonic implications

摘要

The study of anisotropy of magnetic susceptibility(AMS)of rocks from the northern part of Jiangshan-Shaoxing collisional belt demonstrates that the minimum principle AMS axes are the most concentrated one in various types of rocks. The planar projection of the minimum axis shows that the main compressive stress lies on northwest 30°-60°, which trends domi- nantly in northwest-southeast of Chencail area and arc-like disperse towards both north and south of Chencail.